In Sergeant Rex by Mike Dowling on page 187, "Before deploying to Iraq we were given a medical briefing by the Camp Pendleton veterinarian. She put together a medical kit for each handler so we can do some front-line medication of our dogs. She taught us how to insert an IV drip, to rehydrate the dogs. That's proved critical out here in Iraq. Several times Rex has come in off operations so dehydrated that I've hooked him up to an IV."

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That is so amazing! I had no idea that any soldiers were trained to do IVs in animals.